Parts Of The Front Cover 1100/1200 Program Memory - Husqvarna 1200 Service Manual

MEMO-CHIP 1100/1200
The Husqvarna 1100/1200 has an exchangeable memo-chip
in which the characteristics and stitches of the machine are stored.
Exchange of the memo-chip
In order to be able to dismount without damaging the
LCD-board a special extractor tool sshall be used.
Furthermore use a wrist band so that the components
of the LCD-board are not to be damaged by static
electricity (ESD).
Ref. no: Extractor tool
Wrist band
Pull out the mains cable.
Connect the wrist band to the presser bar of the sewing machine.
Dismount rear cover: (P.44).
Dismount front cover: (P.44).
Insert the extractor tool into the socket so that its plastic part
comes to rest against the surface of the socket. (See ill.1).
Cautiously press the pliers together. (See ill. 2).
Check that the pliers lift the chip straight out of the socket.
(See ill.3). Put the memo-chip into the ESD-package.
Put the new memo-chip into the socket.
Check that its bevel is correctly positioned (See ill.4).
Push the memo-chip into the socket.
Mount rear cover and front cover.
NOTE!
After the exchange of the memo-chip it might be necessary
to "clear" it. Use the service cassette and enter the service
programme of the machine by holding down the buttons for
backwards feeding and minus stitch length while turning on
the mains switch. First press button 29 and then button 30.
The machine is now "cleared".
Also check the stitch length balance.
412 27 98-01
412 23 02-01
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